Fabian Cancellara is not giving up hope of a time trial showdown with Britain's Bradley Wiggins at London 2012, after learning he did not break any bones during his fall in the men's road race on Saturday.

Switzerland's Cancellara could still defend his Olympic time trial title on Wednesday, although no decision has been made on whether he will compete or not. An x-ray on Saturday showed heavy bruising, but nothing more severe.

"Looks like a hard night with lots of pain. Happy [nothing] is broken but the pain will be on! For the time trial nothing is sure yet," he said on Twitter. "Have no words left. The tears are stronger than the pain."

Cancellara was in contention for a road race medal until, for no obvious reason, he ploughed into the barriers in Richmond Park. He was able to finish the circuit, but lost too much time in the crash to get himself in a podium spot.

Wiggins, this year's winner of the Tour de France, also suffered disappointment in the road race as Great Britain finished well off the pace.